Motor block cleaner



Jan. 15,1946. FgfAREY TAL j 2,393,215

A MOTOR BLOCK CLEANER l 8 Sheets-Sheet l Filed Dec. `19, 1941 aa. uw,

RJ -La Jan. l5, 1946. Ffc. AREY ETAL MoToR BLOCK CLEANER Filed Dec. 19,' 1941 8 SheeisfSheet 2 1 Jan. l5, 1946. F. c. ARE-Y ETAL MOTOR BLOCK CLEANER 8 Sheets-Sheet 3 Filed Dec. 19, 1941 lh n nllllILLl Jan. l5, i946. F. c. AREY ETAL MofroR BIJ-ocx CLEANER Filed Dec. 19. 1941 s 'sheets-sheet 4` Jan. 15,1946. F. c. .1mi-:Y rAL y MOTOR BLOCK CLEANER Filed Dec. 19. 1941 8 Sheets-Sheet 5 llfl L l 1.1(

Jan. 15, 1946. F. CAREY 'ET Al.

` MOTOR BLOCK CLEANER Filed Dec. 19, 1941 8 Sheets-Sheet 6 WQ. W we ...v l M. fm

Jan. `15, 1946. F. c. AREY Erm.

' MOTOR BLOCK CLEANER FiledOec. 19, 1941 8 Sheets-Sheet 7,

v8 Sh`eeAts-Sheet 8 de" 4.,? f,

/l /ud 5. Mr. faam,

MOTOR BLOCK 'CLEANER Filed Dec. 19. 1941 F. c. AREY Erm.A

`Jan. 1'5, 1946.

Patented Jan. 15, 1946 U NIT ED STATES PATENT -.()FlF'xI-Cl.

IVIOTORBLOCK` CLEANER 'FredCnArey-and De/Los =E.I -Hibner,A Du Bois,- Pa., -assignorsito VulcamSoot Blower Corporation, a

corporation. of Pennsylvania 'Application Decemberv` 19, 19211,` SerialNo. 423,596

(ICI. 134-82) 7 Claims.

'I-he present invention yrelates* to'machin'es'or apparatuses 'for cleaningfthe oil; metal chips,- and other loose "foreignlparticles from the motorlblocks off internal vcombustion -engines y'prior tothe as'- Vseinblir'ig-'of-other enginepartsthereon. -In our priorPatents N'o.-l 2,216,698 and ANo.` 2,258g5'62 Ithe mfo'toilblocks 'are received upon a table'froml which they are rpushed finto' thechamber inwhichthe clea'riingis"donegandfrom which 'they must again be 1'rtilrne'cl Vto Ithe ftable before they can'lbecarried away. v If the motor rblocks areib'roughtftothe table-"byeI 'conveyerandiare then carriedvaway bylanother'conveyer, it means that 'the workman must handle each block several times tofget it into the"cleaning`'apparatus and again `start it fon its 'ivayl from" :the p'la'ce 'of cleaning;4 leventhough power meansbe provdedtomovefthe block into and out of the cleaning chamber. v

-'Iheob'ject ofthefpresent inventionvis tolproduce-a sirnple and-novel apparatus #through which 'engine' fbl'ocks may *..tra-vel in' the 'fsame direction as that inwhiehtheyvieachedt'hef'place of cleaning 'and`A` may Ethen,` while i-stillfftravellingf in the rsame directionf; move out "of ther icleaning chamber and-away fromthe place'fofcleaning.

f The L'cleaning in tnis general."type of apparatus is: accomplished byrmeans'f -jetting=pipes lor tubes ywhich are supplied with l'one ormore fluids-fto'fbe Adisc'zl'iarged intothe passagesfand over. thefsuriac'es to 'be cleaned. 15eme, atleast; 'ofthesefa'ettingedevicesfrnilstbe-positioned'infthe crank chamb'erl "and :at AIthe.,"sideswif the-:block '.:Heretofore these Lfjetting 1 'devices =have been 'soi arranged .in

-xedfpositions Vsol as to permit 'afblockfto be moved into. :cleaning `position' with: respect thereto,` by travelling in the direction of the longitudinalaxis ot'thebl'ock. It' is 'lfor this' reason. thatt has been necessary to move each b1ock =1aterally out yoithe inainline of travel-'tofand from the place 'ci cleaning, "in order 13o' enter it.I inzandfagain remove vitifromvth'e cleaning chamber. i111 accordanceiwith the present inventionythe Ajettingy de- -vicesv are sowin'ountedwand so'manipulated that lthose 'which 'di-d interfere with arv Straight; forward :movement 'off ai 'motorrblock from 'the time it -ap- Vpreachesthe.*cleaning'fcharnber to the. time it passes Afrom thev :latterpare retracted during periods of travel of` 'the vmotor vblocks .and are brought into cleaning` positions "at times `whenthe ichai'nbers. v

' 'The various features of-novelty wherebyour invention -is characterized-'- will fnereinaf-ter 'be pointed "out with particu'larityl 'in the c 1airns;1"but, `for la fiill understanding fof" ourf inventionifan-urof Ami fwashepzin whiclrrthe washingfliquidzisfthenfper@ 'motor blocks are "stationary fwit-hin 'the cleaning x50 fcleaning; apparatus..

its objects 'andiadvantages reference may be `had tothe following detailedV description 'taken-in conne'ction'with the accompanying drawings, where- 1n: y .l

Figure 1 -is an end velevation of` `anapparatus embodying the present invention', showing theend at=whichthe-motor blocks are discharged; l'igi'2 is a top'plan -view of the apparatus,-showing the movable'tubular cleaning elements and housings in their working positions as vdistinguishedv from the retracted or-idlepositions 'of 'Figi 1 ;Fig. 3 isa sectionfon lineB-S of'Fig. 1, showing a fragment of the-apparatus-'on'a largerscale, but'with--the partsin thesamei-pcsitions as-in 'Figi 1;*Fig`f4is arsecti'on-online 4'-'4`of"Fig.' 2';with thebase `por-- tion o'ffthe apparatus shownin end'elevationl-Fig. 5 is van renlarged?"detailA of-a' `-fragment of -the air valve" mechanismshown at ithe'extremel rightfh'and endofFigL 4;`\Fig."6 is a section/online 5;--6

of Fig. 1, but on a larger scale; Iiigliisy a-section on'lne T-'Sl of"1Fi'gl. 3,'ishowing only a -fragment of f'the apparatus; Fig-"8 :is a sectional view-showing a" vfragment ofv the mechanism :for moving 'motor blocks, step -by- Step, through the apparatus; fthe relatively movablev Vrails `being shown indifferent relativepositions than' they@ areA in 'Fig'.- 6 :'Fi'ggQiis a sectionl on" linee-Bief 'Figli 8; Figi lois-atop Aplafnview4 of fragments rof :the stationary .rail- Y'and 'thanfthe Alength `ora motor block toibe cleaned.

These -i-railsv are Isuitably rsupportedf-atcsonlel distance :from :the floor :"upon. any fsuitable' .base' 2.

vlThese 'ra-ils lie between? conveyer "sections which rare indicated only :in Fig. 4,as'ir.ol1ers f3, since the details :cftheseelem'ents constitute no .part of. the 'present inventiem the only thing .that shouldi be considered being thatmotor blocks maybe moved .straight ahead from the rollersatthelefthano "end'cofFigy 4, `along theirailsxand'thenfbe delivered 'to the 'rollers '3'f at theV rightl'iandV end. JIn this 'way` the :only mcvem'entsrof: the blocks are straight ahead'ffrom `the time thatithey approach fthe The- 'particular apparatus illustratedlis 'one/in which each: blockds first determined interval of time, the block is moved t 2,393,215 v iii ahead to the draining station where it is simply f permitted to stand until the following block *has` been washed, whereupon both blocks are moved ahead so as to bring the rst block to the dryingv station and the second block to the drainingstation. At the drying station air or gas, warm orV l at ,room temperature, is discharged in the form of Y k jets against and into the block, conveniently,

through the same type of jetting apparatus as` thatemployed at theV washing station.

As best shown in Fig. 6, each of the three stations is defined bya pair of low projections `4, 4 on top and spaced apart from each other lengthwise of each of the stationary rails; vthe distance between the projections of each pair being equal to the width of the bottom end of the motor block A which Yisto be cleaned. In other words, when a motor block is set upon the stationaryrails; with its long axis extending crosswise ofthe rails, between a pair ofthe projections on each rail, it is held accurately in position, and preventedfrom accidental displacement forwardly or rearwardly, by theseprojections. In order to move amotor block ahead, it must iirst be liftedhigh enough to clear the projectionsV or, statingit differently, the block must be lifted from itsseat on the rails. After this has been done, the block may be carried forward to the next seat and thenbe lowered into the latter.

The means for raising and lowering the motor I blocks and for carrying them from one seat to another and nally discharging-them, may conveniently comprise pairsY of cooperating movable rails which will now' be described. ,These rails arel arranged'in pairs,` one rail above the other, andeach'pair being placed near'the inner side of and near one of the stationary rails. As best yshown in Figs. 6, 8 andY 9,' each pair of conveyer rails comprises an upperrail 5 and a lower rail f 6. Each of the rails 6 rests in the peripheral grooves of and is supported-by a group of anged rollers 'I distributed ylengthwise'of the rails and supported in any suitable way by the base 2. Each of the upper-movable rails rests on top `of the corresponding rail 6 and is preferably provided with depending flanges that overlap theupper .marginal portions'of the lower rail so as'to prevent relative, transverse movements. These flanges areV conveniently produced by Welding plates `8 togopposite sidesV of the rails 5; the plates projecting' far'enough below thebottom edge of that rail tor-provide the desired overlap with respect :to the. lower rail. Each of the rails 6 has inthe Vupper edge a series of recesses 9 distributed alongithe rail. Each of these recesses is deeper at one end'than the other, so that'the bottom thereof is sloping. Viewed from the side of the rail the ydeep end II ofeach of the depressions isln theform of a quarter circle, whereas the shallow end I2 is in the form of a lesser 'arc of the same'circle; The straight bottom portion I4 :OireachV recess is tangent tothe curved portion I,I; but imeets the curved portion I2 somewhat above the lowermost point, so that anytobject resting in the curved seat I2 must be lifted slightly before it can pass over the hump and reach the incline I4. In the lower edge of each of the upper rails 5 are a. similar andV similarly-spaced series of notches or depressions I5. However, the notches or depressions in the upper rails are turned end for end with respect to the correspending notches or depressions in the lower rails-' Within each pair of cooperating notches or recesses, one in the upper and the other in the -lower rail, is a roller I5 of the same radius as the radii of the curved ends of the notches or recesses. It will be seen that when a rail 5 is so positioned with respect to the corresponding rail Gasto bring the centers or axes of the deep ends of its notches or recesses into registration with the axes or centers of the deep ends and the notches 01' recesses in the other rail, room is provided for the rollers while the rails are resting one upon the other, as shown in Fig. 6. If, as viewed in Fig. 6, the lower rail E is moved toward the right while the rail 5 is held stationary, it Awill be seen that the rollers must all ride up on vthe inclined bottoms I4 of the notches or recesses in the lower rail. Therefore, since the only vertical support for the upper rail 5 is the rollers, this rail must rise. Then, after'the rollers have reached the shallow ends of the notches or recesses in the lower rail, a further movement of that rail toward the right, causes the rollers to travel through the length of the notches or recesses in the upper rail, thus lifting the upper rail still higher.V The condition is now as illustrated in Fig. 8. It will be seen that'the motor block has'now been lifted high enough to clear the lugs 4 on the stationary rail I, so that during a further movement toward the right of the rail 5 and, therefore, a corresponding movement of the rail 5, the motor block will be carried along with the -movable rails .which are now its only support. In order to insure thatV there can be no relative movement between the motor block and the rails 5 lengthwise of the latter, during the lifting of the motor block from the stationary rails, and thereafter, the rails 5 are provided on their upper edges with lugs or bosses I7 which rise up behind the engine block and in engagement therewith before the lifting of the block begins. Then, after the block has been lifted above the projections 4 on the-stationary rails, and the rails5 start to move lengthwise, the lugs I1 remain behind the block to push it ahead.

When the movement of the rail 6 is'reversed, it will be seen that the rst result is again to lower the motor block upon the stationary rails, the rails then continuing their backward movement in unison.

It will thus be seenV that by providing means for reciprocating the lower rails 6, through a proper distance, the movement thereof in one direction will result in picking up such blocks as the apparatus may contain, moving such blocks ahead through the distance of one station to another, and then lowering the blocks to position them again in new locations. The return movement, of course, places the movable rails in position to repeat the performance.

Each of the stationary rails may be provided with an extra stop or projection 4 in advanceY of the several seats or stations; this being at the left in Fig. 6. .All that the'workmen need do is aisee@ 212s:

washing; statienf during that'. parti of.. the cycle.; which-.transfersbloclis from@ one stationV to .thez next.. l

ltsii'ouldfbe noted' thatA the' plates weld'edto'. tlierailssE-liavetheadded functioniof poeketing. the rol-lersf l5: solthat. they cannoteseape in th .i sidewisedirections.

In orderto insure thatithe .rails Erw-ill'notzmoyea lengtliiwise:I duringthe preliminary lifting@ moves ments thereof.; itis advisable?v to? providemeansf 10 frictionally to'. hold: them' against lengthwisek movements; Thism'eans: may corioenierrtly` consist? of springs-pressed z brake f shoes |:8 interposed betweexrltlrefrai-ls andlthe railsi; as; shownlin Eigs-liandlot 15.

- Thearailsf# may conveniently be recipro'eatedf throuelfr. power:supplie-dilaryI anele'ctric motor:l i9; liest shownliniEigs.. 1`y andv 2.: ThismotorY operi-- atingf: through# ai Vspeed-reducing.v mechanism 2th.

drives; az crank-l 21,. which' isfcoim'ectedlv by a1 link?. 20`

22 to a cross bar 24 eXtendingbetWeei-rfapair ofV moreon less;v verticallevers 25. lfiirigedwatl their lower ends toca.: platform'l 26= that formsa low eisten'sionrot'1 thevbasesZz. The upperY end of. eaclii ofthese levers is connected tothef adjacent: endf- 25 ofoneof the barst byfa linie 21'.

' TheJ rails previeusly` described extendy` throughwliatfmay he terined-a-casingg within whicl'iftheseveral stations'if'or ay lclockfy that' is-v being;y cleaned lie; .although the structure: need be 'nothingf morei 30,

thanY asframeworle, .suclrasr indicated at: 2:3-,i `which mayf'besproyidediwith atopvor rooiZSif; the trame-- worknleavingf; unobstructed openings at `both lends? tof'nernrit. the` entrancefand` exit' oi?y thel motor blocks: It= is desirable; however; torenclose each; 35.

retracted:- to; get'. them out oi"-i thefway while blocks. 40

@irez-beingy shiftedf Since atY least. some of the tuloularfletting;- elements'zmustf extend across' the path\. offv the motor.- b'loeks; beingy requiredtof' lie im front. of. andfV behind.:v and' evenV toextend framei4 structurer' is 10iwhe-ight; orf depth: greater.

i atithehettom;far-rd.iatitlieinnerf'enctA Theseahous.-

ings.: arersopesi-ttenede andi of`- Asuchsize that'. they nuafy:T meve.. into Athe Ina-inf. casing'. or: framework.

While; the'. letter'4 contains motor.. blocks at al1`v` threefofits stations;..andithusi`serve as 'coverszlfor' i motoicblocks atthefirstleandathii. r-stationsswhere;

jettimgropei'ationsrarei tof be perf'oririeduv Prop;- eriyv pr'oportionin'g^ the..` parts anda-providing.' the. fram'eworhiwflwithl outer." side wall 36; this latter.A wallmay serve asf ai coverfrfor the'.- open' endgsofitheftwo: housingsewhenthese open ends. aarebrought: closezato .'thatiwafllr.

The; movableI-framefstructure; or housing. car;- rierzwith its housings, is. shifted; Vluy" means: of a. pneumatici proiven device comprising a cylinder: 3.7;' containing-.a pistomwhese piston rod-.3E ex.- tends out overt' the mdva'biehousingy carrierf and; is ecmiected atrits outerr end' to: theupper. end of' as pecrestaLA 39- xed t'o and?. rising; from-vl the. housing-2 v.carrier-i. placed :midway lbetween the? two housings .35,y namely atithez longitudinalfcenter of; the housing' carrierrarrd: itzis also:r-preferalcly, mountedon .top oithe-z casingrZ 6;..wherefit l ist 1 outof: the Way.

feourse, the *jettingi devices required: in the appraitatusf` depend; err af particular f kind. of ymotor blocks..ilrethevarrangement showntheresare ve.

jetting; devices-s mounted inryandz movable vwith each?` of.I tl'ie two i housings,... all.v bei-ngy required: to lief aerossf thpathotx the eneinebloeks. and: thus prevent?. theffblocksl from passing; the." same While their jettineY devices aref-in. their: Working. posi7 tions;v @fi tlziese:A ve: jetti-ngz-t devices; three; indicated 'atfdilgqslf and.; 42, are lXed: Withrelation tot.' the housing-. Within. which they are located; whereas thei other twcnindieatediat Mend.- 45; arefrotatabl'e about-their long.` axes;rv aswell as movinggain unison-:withsthe housing: between idle and Working` positions.:

A111..n offvthe: jettingr elements:L carried. lby. each through the lblock during acle'anine operation; 46 housing. leadftoa. suitable-distributing; head 46 thesejetting. elements aref mounted in the hous-l ingsssoasto .-be :brought: intorfproper: working. Do-y sitions.` with-respect: to bloeks whenthe' latter are 'cover-'edi by the f housing-s.

Inl the. arrangement shown,y there? arel two 601 housingseach-.provided*with suitable jetting eleh mentes. One'. of these housingsv` cooperates` With a .hlockfatthe -rsty statieninthefapparatus, whiley the. other. servesfthethirdsta-tion; the intermedietesta-tion.heine.A simply a-f placel infyvhichl a 55 block'rests for. the. purpose. of draining. thewater or.v other. liouid.Y therefrom.. Since the two. hous-l ings. with4 their jetting.A elements," arel shown" as beingtexactly alike, adescriptionof onewi'llsufceiorboth. 60

Supported by the base 2; at a distance substantially. greater than the heightv of.v a motor block..abovethe'rails` II and. 5,.area-pai-rl of long; sturdy rails These. rails` lie' at'. rig-ht angles to. the. rails I. and: 5, they extendv entirely across 05 theinterior. the casine or framework 22%, and the. greater. party oftl'ieir length lies outwardly from: the cas-ing. or framework. Supportedv by the. railsv 3U- through hangers 3iprcvided with ro11ers..3.2 running: on the tor,` of these-rails: isma 70 long,A Wide open-Work frame structure: Sit-,which inczie position...y asshoWn-inflig. l, lies Wholly outside of themoreor less enclcsedspace within Whichthe motor blocks are cleanedpbut: Which .entsfand it `Wfilflftherefor-1e:-suiiice to'. say that .the

travelling.v housing.. carrierz carries amotor. 4f! for the: purpose. of; driving therrotatablejetti-ng elementsfoi: bothiunits; `xthepower of the motor; being.A applied-through er speedereducing. mechanism-x48andfafpa2ir of' endless'chainsfor belts 4%-, 49..

Eachdistributing headis suppliedwithfa cleanin-gor a'dryingf'l-uid-.through-ia long, exible conduit. 5.8,.. Eachloithesefconduits .leads to afsupply maintfmounted.onftopof the main-casing, In eachy of. these mainsiis avalve' 52.l controlled; by afsuitable pilotsvalve 541 These. mainv-alves and pilot-valves are'.` off well I known.V construction, being.: fully illustrated: in.A lig,4 3" of. the. drawing irifthez aforesaid Patent No. 2,258,562. The pilot valves.- are so. positionedthat their stems 55,f-.as best shownuin'lFi-gs: l., 2.andf.3,. are aligned With adjustable pins on screws r.fait mounted. on 1- a: cross har 5.1- xedfi to; thee pedestal 39r whereby, when the tva-fofI housingsr- W-ith.- their.: jetting units: are justa aboutstofreaehftheir; Working'.-positionsfwithther maint casing. theffpins for'. screws vSBrferigage mayhefpushed..entirely across-saidspace". This 75 the.1 SimS-Ov thef'pltfavalV-BSJ and'zpleSS--hem The cylinder.'y is. preferablythe cleaning .uids or. thecleaning and drying fluids to be delivered to the distributing heads.

Asheretoiore stated, the housing carrier is reciprocated by meansof' a piston within the cylinder 31. Air under pressure is admitted alternately into opposite ends of this cylinder, each end being opened to atmosphere While compressed air is entering the other end, through a suitable four-way valve 58 mounted on the end of the platform 26. Air is supplied to the valve through a pipe 59 and iiows. fromthe valve to opposite ends of the cylinder through pipes 60 and 6l. The valve is ,also providedwith an exhaust pipe S2 for connecting either of the pipes B8 and 6I, to atmosphere, in order to allow the air from the corresponding end of the cylinder to escape. Valves of this kind are in common use, one of them being disclosed in our aforesaid Patent No. 2,258,562 and particularly in Figs. 23 and 25 of the drawings of that patent. The oscillating handle 64 of this valve is connected at its free end to a link 65, which, in turn, is connected to the lower end of a more or less upright rocker arm 616 mounted on and projecting above the platform 26. The upper end of'the rocker arm lies in the path of the crank 2| so that when the crank is in the position which it occupies at the forward end of the stroke of the block-shifting movable rails, the crank has swungthe rocker arm in the clockwise direction, as viewed in Fig. 4, far enough to place the pipe B which leads to the lefthand end of the. cylinder 31 in Fig. 1 in communication with the supply pipe 59. Normally the rocker arm is held by a spring 61, in the position shown in Fig. 4, thereby connecting the .pipe .6I and the righthandend of the cylinder 31, as viewed in Fig, 1, tothe source of sup# ply of compressed air. Accordingly, the valve is normally in a position to hold the housing carrier in its retracted position as in Fig, l. However, when the rocker arm is swung to the right,

as viewed in Fig. 4, to admitVair into the lefthand end of the cylinder, a latch 68 drops behind a lug 69 at the juncture of the valve arm 64 andV the link 465, as viewed in Fig. 5,- thereby preventing the spring B1 from returning the valve to its normal position when the block-sluiting rails make a return stroke. This latch is adapted to be raised by the plunger 10 of an electro magnet 1| so that, at the proper time, air can be admitted into the righthand end of the cylinder toeforce the housing carrier into its idle position.

A suitable control system is provided for the motors i8 and 41 and for theelectro magnet 1l. This control system includes a number of relays arranged in a panel box 12 at one end of the casing 28, and four two-positions limit switches 13, 14, and 16,'that are mechanically operated to move them out of positions which they Vautomatically assume when free to do so. The switch 13 is'mounted on the housing carrier behind one of the fluid distributing heads 46 where its actuating arm or lever is adapted'to be driven in one direction by a rotary element 11, rotating in a denite time relation to the rotary jetting elements. Switches 14 and 15 are fastened to one side of'one of the stationary carrier-supporting rails 30. 'As vbest shown in Fig. said carrier has thereon two shoes A18 and 19 so positioned that, when the carrier is in its retracted position, theeshoe 18 presses down on the operating lever ofV the 'switch 14; whereas, when the carrier is in its working position in thefcasing 28, the shoe 19 presses down the'lever of the switch15. The

back so aste cause the main valvesato-openandswitch 16 is mounted on the platform 26 in thepath of one of the levers 25, so as to be shifted into one of its positions by that lever whentherails 5 and 6 are in their normal positions of rest, ready for operation to pick up a motor block or blocks preparatory to shifting the same.

The control system is such that the operatorV need only operate a simple switch as, for example, a push button such as indicated at in Fig. 2, in order to start the apparatus and cause it to operate through a complete cycle.

The operation of the apparatus of the cleaner will be further described in connection with the wiring diagram constituting Fig. 12, together with Figs. 13 to 16 inclusive, which constitute four repetitions of the diagram illustrating the conditions which exist at different fpoints in a cycle; only those portions of the diagram in these last four figures that are active at the moment being indicated in full lines, whereas the remainder is Vthe secondary of a transformer T. Normally,

when the apparatus is not in use, the circuit conditions are those illustrated in Fig. 12. When it is desired to start a cleaning operation, assuming that the first motor block has been pushed up against the lefthand projections 4 on the sta.-

tionary rails l in Fig. 6: the operator presses the push button 80 so that current may ow from supply wire 81 through the push button, through wire 89, wire 90, limit switch 16, wire Si, and

actuating coil 92 for relay 82 and thence to supply' wire 88. This causes relay 82 to be closed, as in Fig. 13, and completes a circuit through this relay,

from supply wire 81 through a wire 94, throughk limit switch 14, through the starting switch 85 for motor I9, and back to supply wire 88. Consequently, the motor i9 is set in operation, causing the conveyer composed of the rails 5 and B to lift the motor block which is at the entrance to the main casing, carry it to the rst station, which is that in which the lefthand motor block is located in Fig. 6, and then lower it into its seat at that station. As soon as the relay 82 closes, there is established a circuit for the solenoid 92, independently of the starting button; this circuit including both the wires and 9|, the lower of the two circuit closers in the relay, and the wire 95. Therefore, the push button need be held down only momentarily in order that a cycle will be completed after having been started.

As soon as the levers 25 begin to swing toward the right, as viewed in Fig. 4, the limit switch 16 is freed therefrom so that this switch now automatically assumes the position illustrated in Fig 14, completing the circuit through the starting'switch 85 independently of any other switch or relay. The circuit making and breaking elements in limit switch 16 are of the type that permit the connection established thereby in Fig. 13 to be maintained until the other set of connections, as in Fig. 14. are established when the con-L veyer for the rail block reaches its forward position, namely the position in which the motor block is directly over the first cleaning station or seat, and the crank 2| has been actuated to throw the air valve 58 into the proper position to permiteair togenterthelefthandzendfofatheecylinderl 531. l'.(Lonseuuently, the `:luiusing warrior fis movediso oasitofcause :the.rhciusings1to.y enterethe casing 228:; fone sof the ,housingsy fextendingxover athezblockmhich isnnowoat the: first :stationazand the jetting elements in that housingfbeingeprop- -Yerly positioned with frespect :to fthe .-zhloc'k. As heretofore fexplained, .the @air Naive f is latched this newsgposition Vso --that the :ihousmgswwithitheir :jetting :elements-:must remain .in their :working 'positions' until the `valve-isfagainuinlatched. iAs the-oarrierz moves orf-begins to-movefro'm itstidle, retracted position, toward its working rposition, -the fshoe18-moves avv-ay `from the: operating-Pllever fofzzthe limit switch '1 1A, :so lthat this .switchzauto- `maticallyl opens asshoum nElg. 135.v #Sincere cycleyuponpressing `:the push tomaten, eaiiestart f only `when =the`iimitrswitchi1 4 is^clos ed, YthesopenlingJof-"this fswitch=immediatlyfafter thehousing carrier "begins to move l*toward* its @Workingf posi- `tion, whileit I -does tnot linterrupt y@the circuit `fior #the conveyer Tmotor `Aat 1'this time, prevents the conveyor from starting again after it has -ibeen stopped. reachesiits working or cleaningfpositionethelimit switch Iis closed lby means -o'f -44thefs'hoe'T10-on the carrier,@thereby-bringing 'about the conditions 'existingin full -'lines `in -Fig. -l5 and eaus'ingfthe motor-41fto'startptlse circuit -ffor i"the starting lswitch ofemo'tor '-41 Mbeing from 1 supply =Wire 181 through lthe limit Aswitch 15, Lthrough` theflower contacts--o'relay-'83 ;`-th.rough= Wire 08, through the 'startere 6; -and thencey to "supply wire "88. v'As'socn Jvas theiwashlng motor/starts, the varm 1'| 'off-the etiming device v operated-by the'motor -41 moves away fromM the operating lever lo-limit switch 'I 3, -sothatthis switch automatically -shiftsifrcm the `positionshown inFigs. 11'2, 13 and'lfletothatin v`Fig-15. causes currentto tflowiromfsupply wire 81, through limit :switch #5,' theloWer-con- 'tacts :of 'limit :switch `K13,1tl'iroughrl'xe "actuating coi1"9"|"oi" relay"84,andthencetosupply `Wire '88. 'The cooperating contactsv in-thisfre`lay are* there- Workingpo's'iticn, it.o pens the pilot valves 54,'

causing-'jets of washing liquid, in the one instance, and of drying fluid in the other, to be discharged, at the rst and third cleaning stations. There is at this time only one block in this apparatus, namely that at the rst station, and it is washed as long as the Valve in the Washing water pipe remains open.

After the motor 41 has made a predetermined number of revolutions, the arm 11, driven by the motor, again engages the lever or arm of limit switch 13 and shifts the switch from the position indicated in Fig. 15 to the position it occupies in the other diagrams. This permits current to oW from line 81 through limit switches 15 and 13,

Y relay 84 and coil 98 of relay 83, thereby shifting When 4the *housing iforfithe `lcarrier,

'110 unobstructedathefnaththatithefzmotor blocksunust ieliow. .while travelling rthrough; the apparatus. :les the eaarrer starts iback; fromg-itsf. working posifeticntheiiimiteswitchetfcpens, therebybreaking the circlrtsl Joratheicnlsfthe/Iielaysx 'and 84.

upon :it-he `siibselduent closing :of limit @switch 14, when the carrier is fully retracted, the cycle-sof @openations,eannotagain'ibestarted until fthe push zehuttnnuliseagainipressed.YV 'f6-:the pushG-but- 1.20 @teneis shownr closed A:and ,themoil offrelayazlener.

energized-,he fcoil.- ofmelayim before a :cycle is; com- -vpletedsandathusebeeready automatically tdstart .a newfeycleiat the rendothatfcycle;Withoutheing present at the itime' of :.*s'tarting :the fnew :cycle 30 i'hesefore; the :operator :em-ay :place .ia 4ebldck in fposition .f to fbel .picked-supi byflithe; conveyer,:,at 'the end of a cycle which:isnotfayeteendedeandfithen f-goidowniitheilineiandfhring up more2-blocks .into fthe fvicim'ty. oifztheleaningapparatus Y .35 .=The..-secondfcycle iresuitsein .movingrthe blo'ck into the =;second `dr :draining station rand -bringing a-zseeon'd. blockeintolthezawashing station. Aff-ter the third cycle 4,gets :under iwa-y, :all :three stations Aleox'itai-.n malades-zand icondition iis 4.o thereafitermaintained as.long.1as.=blocks continue topeideliveredftoathe-conveyerfafclean block being ffdiscfhargedeat :tne front `Lezard .of .the. apparatus avheneveriaeblocketoriae :cleanedelfiscarried into the A-rr=a1mend.= Y Somefcf the-zrequ-ired;iettingedeyicesxmayiheiso placed .as fnot to :interfere iwith the progressi of motor :blocks nthrnugh the .cleaningeapparatus `even:'-thoug-h"these2 jettingfdevices `remain in meid ipositions. ..Thus, inithe arrangementshowneonly `main;fvalvesfdZ fiows vintoethe iLeerrespon'cling dexifble condi-MM50, iwhile..-ano'ther;ipartfitlowsfiihrough api-pe |0l|sextending across-ltheatopeofifthe:feasing '228; iAibranch pipe10102,;:extendsedown pastat-he A55 fouters'i-'defo'ff the tcasingifromeeach'ua'f:,fthefipipes .11.01 @Connected :to :ea'chfio'f these 2 :branch epipes are two jetting pipes |03, |04 which extend into the casing 28 parallel with the movable jetting elements and at such a height as to lie above motor blocks in the casing and yet be contained in the housings when the latter are shifted into their working positions. Connected With each of the pipes |02 is also a short, vertical jetting element |05 lying close to the outer side wall of the casing for the purpose of operating on one end of a motor block. In addition, there may be a at letting element |06 about as long and as wide as the bottom of a motor block, lying underneath the rails 6 at the Washing station and at the drying station; each of these jetting elements being connected to the corresponding pipe |02.

While we have illustrated and described with particularityonly a single preferred form of our invention, We do not desire to be limited to the exact structural details thus illustrated and described; but intend to cover al1 forms and arrange- Vments which come within the denitions of our invention constituting the appended claims.

We claim: l l. 1. VA machine for cleaning motor blocks having acasing containing at least two stations to be occupied by such blocks, means for moving blocks one after another sidewise into and through said casing and said stations and allowing them to remain for a short time at each station, a movable cover for a motor block adjacent to at least one, of said stations and having jetting means within the same and carried thereby, and means to move said coverover each of the blocks and render the jetting means active during the period of rest of the latter in the last-mentioned station. l

2.; A machine for cleaning motor blocks having a Vcasing containing at least twostations to be occupied by such blocks, means for moving blocks 4one after another sidewise into and through said casing and said stations and allowing them to remain at rest for a short time at each station, a housing on the outside of the casing beside at least one station and having the end toward that station open, fluid-discharging elements secured in and carried Vby said housing, and -means to move said housing laterally into the casing to cover each block and bringits open end near to Va, side wall of the casingduring a part of the period of rest of the block in the 'station with which the housing is associated.

3. A machine for cleaning motor blocks comprising a long casing open at the ends and at one vertical side, stationary rails arranged longitudinally in the bottom of the casing and having on top thereof work-receiving seats for accurately positioning motor blocks and defining work treating stations, means for moving motor blocks through said casing into one after the other of said seats and allowing each to remain a predetermined time in each seat, a jetting apparatus at the open side of the casing beside at least one of said stations, and means to move said apparatus linto and out of the casing during the time a motor block remains in a station.

4. A machineior cleaning motor blocks comprising along casing openat the ends and at one vertical siderstationaryrails arranged in and extending through the length of the casing, said rails having on top ythereof three work receiving seats 4for accurately positioning motor blocks and dening treating stations spaced apart lengthwise of the casing, means for ,moving motor blocks through the casinginto4 one after the:

other of said seats and allowing each to remain ai-predetermined. time in'each seat, jettingrappara'i',uses at.' the open side: of the' casing beside thetrst and third seat,V andmeans'ito move' said ,apparatuses into and outoflthecasin'g 'during eachpe'riod :of time that aA Jmotorblock remains at astati0n:..' i I til, et? 5. VAmachine foricleaning 'motor' blocks comprising a long casing'open at theends'andat one vertical. side, stationary rails runningzithrough the length of the casing andhaving on the top work receiving seats for accurately positioning motor blocks and defining, treatingjvstations, means to move motor blocks through4 the casinginto oneafter the other of said seatsfand` allowing each to remain-apredeterminedtmein each seat, a housing at the open side. of the caslingbeside atleast one of said stations Vand open on'the sidetoward the casing, jetting'means in saidv housing and `secured thereto so- 'as'. to be ,movablegjtherewitn andV means tojrmove said -housing into and out of the casing duringeach period of time that a motor block remains at a 6` A machine forcleaning motor blocks comprising a long casing open at the ends and at one vertical side, stationary rails arrangedglongitudinally in the casing and having onvtop thereof Vwork receiving seats for va :ci.1rately positioning motor blocks and definingA treating stations, means for moving motor blocks through said casing into oneV after the yother of said seats and allowing each to remain a predetermined time in each seat, atrack in said casing transverse to the rails and extending out through the openside of the casing/a jetting apparatus mounted on said track for movements into and out ofthe casing at one of said stations, and means to move said apparatus along the traclr` into and outvot the casing during each vperiod of time that a motor block remains at a stationl- 7. A machine for cleaning motor blocks having at least two stations to be occupied by such blocks, means to move blocks, 'each having in an end a passage .to be cleaned, sidewise into and through lsaid station'sfa housing containing jetting means vbeside each of suchtwo stations, one of -said jet- 4ting means` in each housing being aligned with said passage -when a block'is Vat the station correspondingto that housing, and means to, move said housings transversely of the path of'said blocks to cover them when they ,are said stations and cause the aligned jetting means to enter said passages and again to retract the housings before the blocks leave the'stations. Y. FRED C. AREY.

DE LOS E. HIBNER. 

